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// libTorrent - BitTorrent library
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// Copyright (C) 2005-2006, Jari Sundell
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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// In addition, as a special exception, the copyright holders give
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// permission to link the code of portions of this program with the
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// OpenSSL library under certain conditions as described in each
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// individual source file, and distribute linked combinations
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// You must obey the GNU General Public License in all respects for
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// all of the code used other than OpenSSL. If you modify file(s)
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// with this exception, you may extend this exception to your version
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// of the file(s), but you are not obligated to do so. If you do not
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// wish to do so, delete this exception statement from your version.
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// If you delete this exception statement from all source files in the
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// program, then also delete it here.
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// Contact: Jari Sundell <jaris@ifi.uio.no>
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// 3185 Skoppum, NORWAY
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// A fixed with char array used to store 20 byte with hashes. This
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// should really be replaced with std::array<20>.
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#ifndef LIBTORRENT_HASH_STRING_H
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#define LIBTORRENT_HASH_STRING_H
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#include <torrent/common.h>
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class LIBTORRENT_EXPORT HashString {
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typedef char value_type;
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typedef value_type& reference;
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typedef const value_type& const_reference;
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typedef value_type* iterator;
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typedef const value_type* const_iterator;
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typedef std::size_t size_type;
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typedef std::ptrdiff_t difference_type;
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typedef std::reverse_iterator<iterator> reverse_iterator;
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typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
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static const size_type size_data = 20;
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size_type size() const { return size_data; }
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iterator begin() { return m_data; }
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const_iterator begin() const { return m_data; }
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iterator end() { return m_data + size(); }
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const_iterator end() const { return m_data + size(); }
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reverse_iterator rbegin() { return reverse_iterator(end()); }
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const_reverse_iterator rbegin() const { return const_reverse_iterator(end()); }
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reverse_iterator rend() { return reverse_iterator(begin()); }
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const_reverse_iterator rend() const { return const_reverse_iterator(begin()); }
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reference operator [] (size_type n) { return *(m_data + n); }
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const_reference operator [] (size_type n) const { return *(m_data + n); }
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value_type* data() { return m_data; }
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const value_type* data() const { return m_data; }
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const value_type* c_str() const { return m_data; }
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void assign(const value_type* src) { std::memcpy(data(), src, size()); }
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bool equal_to(const char* hash) const { return std::memcmp(m_data, hash, size()) == 0; }
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bool not_equal_to(const char* hash) const { return std::memcmp(m_data, hash, size()) != 0; }
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// It is the users responsibility to ensure src.length() >=
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static const HashString* cast_from(const char* src) { return (const HashString*)src; }
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static const HashString* cast_from(const std::string& src) { return (const HashString*)src.c_str(); }
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char m_data[size_data];
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operator == (const HashString& one, const HashString& two) {
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return std::memcmp(one.begin(), two.begin(), HashString::size_data) == 0;
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operator < (const HashString& one, const HashString& two) {
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return std::memcmp(one.begin(), two.begin(), HashString::size_data) < 0;
added
removed
src/torrent/hash_string.h
